Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
KJV

Numbers 31:40

And the persons were sixteen thousand; of which the Lord’s tribute was thirty and two persons.

Parallel Translations

LXXView canonical →
and the persons, sixteen thousand, and the tribute of them to the Lord, thirty-two souls.
Brenton's Septuagint Translation
LXX2012View canonical →
and the persons, sixteen thousand, and the tribute of them to the Lord, thirty-two souls.
Septuagint in American English (2012)
WEBView canonical →
The persons were sixteen thousand, of whom Yahweh’s tribute was thirty-two persons.
World English Bible